Homeowners in some affluent neighborhoods across the country are lobbying city and state representatives to fight against noise from overhead planes that fly over their communities since new flight routes were recently implemented. Owners are posting signs in their yards and have even developed technology to make filing complaints as easy as the press of a button.

In 2013, the Federal Aviation Administration’s Next Generation Air Transportation System changed flight paths over major metro areas. Some homeowners suddenly saw flight paths redirected to go over their neighborhoods.

“It’s like a war zone,” says homeowner Sarah Haeffele, who lives in a home over new flight paths out of O’Hare International Airport in Chicago. Haeffele, who paid $835,000 for her Peterson Woods home, says she wears headphones when in her backyard because the overhead airplane traffic is so loud.

An FAA spokesman told The Wall Street Journal that its NextGen program has generated more noise overall. The NextGen flight path overhaul is expected to be completed by 2021.

“Our noise modeling prior to the launch showed that there would be small increases in some places, small noise decreases in some places, and some places would see no change,” he told the paper. “We stand by that modeling.”